Greetings,
Are there any recommendations for Timing Chains, Gears, Tensions, etc? Which are the best quality manufactures of these components? And input is appreciated.

 

Hello, Paul

I recommend that you swallow hard and go with OEM Jaguar parts. My adventures with aftermarket timing kits can be found in the thread: Choice of tensioners in the X100 forum. I'm sorry, but I can't seem to figure out how to quote from another thread, here.

Best Rick

 

I would tend to agree. There's a few things that you have to get OEM from JLR anyway, like the thin little o-ring on the crank snout. Order everything all from one place and be done with it. Over a decade ago, I used the kit from Christopher's Foreign Car Parts, but he passed away last spring. The chains and tensioners are still fine, but I have to admit that the gaskets and seals that came with his kit are no longer in there - they leaked. But this job, at least the primaries, is such a PITA, that its not one that you want to do over again any sooner than you have to. I'll take a chance on aftermarket parts for easy jobs, but the harder the job, the more likely I am to pry open the wallet for OEM.

 

We don't even know if the parts requested are for the 4.0 or 4.2?
Later 4.0 engines already have the 'Morse-Style' silent running primaries and metal body secondary chains.

They may not need replacing?

 

My 2002 4.0 still had the gen2 plastic secondary tensioners.
You can look it up by engine number (my 2002 had an engine built in 2001 just a couple of weeks before the switchover).

 

Changeover to Morse primary chains & metal-bodied tensioners occurred at engine # 0108130000.